// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef NET_NQE_CACHED_NETWORK_QUALITY_H_
#define NET_NQE_CACHED_NETWORK_QUALITY_H_

#include "base/macros.h"
#include "base/time/time.h"
#include "net/base/net_export.h"
#include "net/nqe/network_quality.h"

namespace net {

namespace nqe {

    namespace internal {

        // CachedNetworkQuality stores the quality of a previously seen network.
        class NET_EXPORT_PRIVATE CachedNetworkQuality {
        public:
            explicit CachedNetworkQuality(const NetworkQuality& network_quality);
            CachedNetworkQuality(const CachedNetworkQuality& other);
            ~CachedNetworkQuality();

            // Returns the network quality associated with this cached entry.
            const NetworkQuality& network_quality() const { return network_quality_; }

            // Returns true if this cache entry was updated before
            // |cached_network_quality|.
            bool OlderThan(const CachedNetworkQuality& cached_network_quality) const;

            // Time when this cache entry was last updated.
            const base::TimeTicks last_update_time_;

            // Quality of this cached network.
            const NetworkQuality network_quality_;

        private:
            DISALLOW_ASSIGN(CachedNetworkQuality);
        };

    } // namespace internal

} // namespace nqe

} // namespace net

#endif // NET_NQE_CACHED_NETWORK_QUALITY_H_